** Description changed:

- An alarm 'beep beep' output during system boot at BIOS phase.
  
- [Steps to reproduce]
- 1. Install system with sutton-mccarthy-bionic-amd64-20190801-154 image.
- 2. Reboot system.
+ Since this fix is still in the maintainer's tree, I add the UBUNTU: SAUCE:
+ prefix in the patch title.
  
- [Expected result]
- No alarm 'beep beep' when system boot and poweroff.
+ And this patchset is fixing a bug in the oem project, so please merge the
+ patchset to OEM-B asap.
  
- [Actual result]
- An alarm 'beep ...' during system boot at BIOS phase.
+ [Impact]
+ We often hear the Beep noise when a couple of LENOVO laptops reboot, the
+ reproduce rate is about 3/10.
  
- [Failure rate]
- 100%
+ [Fix]
+ make the codec enter D3 before rebooting or poweroff, this can fix the issue.
+ 
+ 
+ [Test Case]
+ Tested on those LENOVO latpops, reboot 50 times, didn't reproduce the
+ noise issue.
+ 
+ 
+ [Regression Risk]
+ Low. We tested this patch on different lenovo and dell laptops, they
+ all worked well as bfore.

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1840395

Title:
  reboot will introduce an alarm 'beep ...' during BIOS phase

Status in HWE Next:
  New
Status in linux package in Ubuntu:
  Incomplete

Bug description:
  
  Since this fix is still in the maintainer's tree, I add the UBUNTU: SAUCE:
  prefix in the patch title.

  And this patchset is fixing a bug in the oem project, so please merge the
  patchset to OEM-B asap.

  [Impact]
  We often hear the Beep noise when a couple of LENOVO laptops reboot, the
  reproduce rate is about 3/10.

  [Fix]
  make the codec enter D3 before rebooting or poweroff, this can fix the issue.

  
  [Test Case]
  Tested on those LENOVO latpops, reboot 50 times, didn't reproduce the
  noise issue.

  
  [Regression Risk]
  Low. We tested this patch on different lenovo and dell laptops, they
  all worked well as bfore.

To manage notifications about this bug go to:
https://bugs.launchpad.net/hwe-next/+bug/1840395/+subscriptions

-- 
Mailing list: https://launchpad.net/~kernel-packages
Post to     : kernel-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~kernel-packages
More help   : https://help.launchpad.net/ListHelp

Reply via email to